2019 Ram 1500 Fluid Types and Capacities

    ## Quick Reference: 2019 Ram 1500 Fluid Specs

Fluid	Type/Specification	Capacity
Engine Oil (5.7L HEMI V8)	SAE 5W-20, API SN, Chrysler MS-6395	7.0 quarts (6.6L)
Engine Oil (3.6L Pentastar V6)	SAE 0W-20, API SN, Chrysler MS-6395	5.0 quarts (4.7L)
Engine Coolant	Mopar OAT (Purple), MS-12106	14.0 quarts (13.25L) - Varies
Transmission Fluid (8-speed)	Mopar ZF 8&9 Speed ATF, MS-90030	~9.0 quarts (8.5L) - Service fill varies
Transfer Case Fluid	Mopar BW44/48 ATF	~1.5 quarts (1.4L)
Front Differential (4WD)	SAE 75W-85 Gear Lubricant	~1.2 quarts (1.1L)
Rear Differential	SAE 75W-140 Synthetic Gear Lubricant + LSD Additive	~2.5 quarts (2.3L)
Brake Fluid	DOT 3 / DOT 4	As required
Power Steering Fluid	Electric Power Steering (EPS) - No Fluid	N/A
Windshield Washer Fluid	-35°F (-37°C) Winter Windshield Washer Fluid	1.0 gallon (3.78L)

Engine Oil

For the 2019 Ram 1500, the correct engine oil is critical for the performance and longevity of its advanced engine technologies, such as the Multi-Displacement System (MDS) in the HEMI V8. Using the wrong viscosity or specification can lead to lubrication issues and check engine lights.

• 5.7L HEMI V8: This engine requires SAE 5W-20 viscosity grade motor oil that meets API Service Category SN and Chrysler's material standard MS-6395. The oil capacity is 7.0 quarts (6.6L) with a filter change.
• 3.6L Pentastar V6: This engine uses a thinner SAE 0W-20 viscosity grade motor oil, also meeting API SN and MS-6395. The capacity is 5.0 quarts (4.7L) with a filter change.

Notes: Always use a high-quality synthetic blend or full synthetic oil to ensure proper lubrication, especially in extreme temperatures. The MS-6395 specification is key; look for it on the bottle to ensure compatibility. Change intervals are typically determined by the oil life monitoring system, but a good rule of thumb is every 5,000 to 7,500 miles.

Engine Coolant

The 2019 Ram 1500 moved to a new coolant formula. It is imperative not to mix coolant types, as this can cause gelling, corrosion, and severe damage to the radiator and cooling system.

• Type: The factory-fill coolant is a Mopar 10-year/150,000-mile OAT (Organic Additive Technology) formula. The Mopar part number is 68163848AB, and the specification is MS-12106. It is easily identified by its purple color.
• Capacity: The total system capacity is around 14.0 quarts (13.25L), but this can vary based on the engine and options. For a drain and fill, you will likely replace less than the total capacity.

Pitfalls: Never top off or mix with older HOAT (Hybrid OAT) coolants (which are typically orange or pink) or any generic "universal" green coolants. If the wrong coolant has been added, a complete system flush is necessary. Always use a 50/50 mix of the correct OAT concentrate and distilled water.

Transmission Fluid

The 8-speed automatic transmission in the 2019 Ram 1500 is a sophisticated unit that requires a very specific fluid.

• Type: Use only Mopar ZF 8&9 Speed ATF or an equivalent licensed fluid that meets Chrysler's MS-90030 specification. This is a low-viscosity, high-performance fluid designed for this specific transmission.
• Capacity: This transmission does not have a dipstick for casual checks. A full system fill is around 9 quarts, but a drain-and-fill service is not straightforward and is best left to a professional technician, as it involves a specific temperature and fill procedure.

Notes: Using any other type of ATF, such as ATF+4, Dexron, or a universal fluid, will cause irreversible damage to the transmission clutches and valve body. Service intervals are typically long (around 100,000 miles), but consult your owner's manual for the specific recommendation based on your driving habits.

Drivetrain Fluids (Transfer Case & Differentials)

For 4WD models, several different gear oils are required to keep the drivetrain operating smoothly.

• Transfer Case: The transfer case requires a specific fluid, Mopar BW44/48 ATF. Do not confuse this with standard transmission fluid. The capacity is approximately 1.5 quarts (1.4L).
• Front Differential (4WD): The front axle requires SAE 75W-85 Gear Lubricant. The capacity is around 1.2 quarts (1.1L).
• Rear Differential: The rear axle specifies a heavier SAE 75W-140 Synthetic Gear Lubricant. Crucially, if you have a limited-slip differential (LSD), a limited-slip additive must be included. Many synthetic 75W-140 gear oils already contain this additive, but it is vital to verify. The capacity is approximately 2.5 quarts (2.3L).

Brake Fluid

Brake fluid is hygroscopic, meaning it absorbs moisture over time, which can lead to a spongy pedal and corrosion in the brake lines and ABS module.

• Type: The 2019 Ram 1500 uses DOT 3 brake fluid. DOT 4 can also be used as it has a higher boiling point, but the two should not be mixed. Never use DOT 5 (silicone-based) fluid in a system designed for DOT 3/4.
• Capacity: The system should be bled and topped off as needed. A full flush typically requires 1-2 quarts of fluid. A flush is recommended every 2-3 years, regardless of mileage.

Power Steering Fluid

The 2019 Ram 1500 is equipped with Electric Power Steering (EPS). This system uses an electric motor to provide steering assistance instead of a hydraulic pump and fluid. Therefore, there is no power steering fluid to check or change.

Windshield Washer Fluid

For optimal performance, especially in colder climates, use a quality -35°F (-37°C) winter-grade windshield washer fluid. This will prevent freezing in the lines and on the windshield. Simply top off the reservoir as needed. The reservoir holds approximately 1 gallon (3.78L).

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